21 citations · 32 across the 7 of their papers we have counts for
11 papers · 1 filter
Soft Anharmonic Coupled Vibrations of Li and SiO4 Enable Li-ion Diffusion in Amorphous Li2Si2O5
Sajan Kumar, Mayanak K. Gupta, Prabhatasree Goel +7
We present the investigations on atomic dynamics and Li+ diffusion in crystalline and amorphous Li2Si2O5 using quasielastic (QENS) and inelastic neutron scattering (INS) studies su…
Solid-like to Liquid-like Behavior of Cu Diffusion in Superionic Cu2X (X=S, Se): An Inelastic Neutron Scattering and Ab-Initio Molecular Dynamics Investigation
Sajan Kumar, M. K. Gupta, Prabhatasree Goel +5
Cu2Se and Cu2S are excellent model systems of superionic conductors with large diffusion coefficients that have been reported to exhibit different solid-liquid-like Cu-ion diffusio…
Revisiting 70 years of lattice dynamics of BaTiO3: Combined first principle and experimental investigation
Vivek Dwij, Binoy Krishna De, Gaurav Sharma +4
BaTiO3 is a classical ferroelectric studied for last one century for its ferroelectric properties. Lattice dynamics of BaTiO3 is crucial as the utility of devices is governed by ph…
Phonons and Oxygen Diffusion in Bi2O3 and (Bi0.7Y0.3)2O3
Prabhatasree Goel, M. K. Gupta, R. Mittal +3
We report investigation of phonons and oxygen diffusion in Bi2O3 and (Bi0.7Y0.3)2O3. The phonon spectra have been measured in Bi2O3 at high temperatures up to 1083 K using inelasti…
Annealing driven positive and negative exchange bias in Fe-Cu-Pt heterostructures at room temperature
M. A. Basha, Harsh Bhatt, Yogesh Kumar +5
We report annealing induced exchange bias in Fe-Cu-Pt based heterostructures with Cu as an intermediate layer (Fe/Cu/Pt heterostructure) and capping layer (Fe/Pt/Cu heterostructure…
Dynamics of Li-ion in V2O5 Layers from First-Principles Calculations
Baltej Singh, M. K. Gupta, R. Mittal +1
The alkali atoms, due to their small sizes and low charge ionic states, are most eligible to intercalate in the structural layers of V2O5. We have applied ab-initio density functio…